Manufacturing of Twist-Free Surfaces by Magnetism Aided Machining Technologies

Authors: Zs. Kovács, Zs. J. Viharos, J. Kodácsy

Abstract:

As a well-known conventional finishing process, the grinding is commonly used to manufacture seal mating surfaces and bearing surfaces, but is also creates twisted surfaces. The machined surfaces by turning or grinding usually have twist structure on the surfaces, which can convey lubricants such as conveyor screw. To avoid this phenomenon, have to use special techniques or machines, for example start-stop turning, tangential turning, ultrasonic protection or special toll geometries. All of these solutions have high cost and difficult usability. In this paper, we describe a system and summarize the results of the experimental research carried out mainly in the field of Magnetic Abrasive Polishing (MAP) and Magnetic Roller Burnishing (MRB). These technologies are simple and also green while able to produce twist-free surfaces. During the tests, C45 normalized steel was used as workpiece material which was machined by simple and Wiper geometrical turning inserts in a CNC turning lathe. After the turning, the MAP and MRB technologies can be used directly to reduce the twist of surfaces. The evaluation was completed by advanced measuring and IT equipment.

Keywords: Magnetism, finishing, polishing, roller burnishing, twist-free.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1129730

References:

[1] S. Jung, W. Haas, Grundlehrang Dichtungstechnik. University of Stuttgart (2006)
[2] G. Lechner, H. Raab, Einfluss der Wellenlaufflache auf das Dichtverhalten von Radialwellendichtringen. Final report, BMWi/AiF Nr. 10670 (1998), pp.: 59-73.
[3] MBN 31007-7, 2002. Daimler AG, Stuttgard (2001), pp.: 312-316
[4] A. Schubert, R. Zhang, P. Steinert, Manufacturing of Twist-Free Surfaces by Hard Turning, Procedia CIRP (2013), pp.: 294
[5] J. Kundrák, I. Sztankovics, K. Gyáni, Analysis of the Theoritical Values of Several Characteristic Parameters of Surface Topography in Rotational Turning, World Academy of Science, Engineering and Technology International Journal of Mechanical Aerospace, Industrial, Mechatronic and Manufacturing Engineering Vol:8, No:5, (2014), pp.: 908-914
[6] Kodácsy, J. Líska: Magnetic Assisted Roller Burnishing and Deburring of Flat Metal Surfaces. Advanced Materials Research Vol. TransTech 472-475 Publication Ltd, Zürich, 2012, pp.: 908-911.
[7] J. Kodácsy, J. Danyi, A. Szabó, Gy. Fülöp: Magnetic Aided Roller Burnishing Metal Parts. 7th International Conference on Deburring and Surface Finishing, UC Berkeley (USA), 2004, pp.: 375-378
[8] Ecoroll Corporation prospect: Tools & Solutions for Metal Surface Improvement. Milford, USA, 2006, pp.: 6, 16, 28, 31, 91.
[9] ZFN 5032:2013-10 (industrial standard)
[10] J. Kundrák, N. Nagy, Twisted surface machined by cutting (Forgácsolással megmunkált felületek sodrásossága), GYÁRTÁS 2015 Konferencia, 2015, November 20, Budapest, GépGyártás szakfolyóirat, INDEX: 25344, ISSN 0016-8580, pp.: 116-118.